30120004422 has 24 divisors (see below), whose sum is σ = 69098834376. Its totient is φ = 9449413056.

The previous prime is 30120004351. The next prime is 30120004427. The reversal of 30120004422 is 22440002103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30120004395 and 30120004404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120004427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49215388 + ... + 49215999.

It is an arithmetic number, because the mean of its divisors is an integer number (2879118099).

Almost surely, 2^30120004422 is an apocalyptic number.

30120004422 is an abundant number, since it is smaller than the sum of its proper divisors (38978829954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30120004422 is a wasteful number, since it uses less digits than its factorization.

30120004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98431412 (or 98431409 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30120004422 its reverse (22440002103), we get a palindrome (52560006525).

The spelling of 30120004422 in words is "thirty billion, one hundred twenty million, four thousand, four hundred twenty-two".